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bipartisan
bipartite
biped
bipedal
bipedalism
biphasic
biphenyl
bipinnate
biplane
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bipolar disorder
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biplane

bi·plane [ b plàyn ] (plural bi·planes)


noun 
Definition:
 
airplane with two sets of wings: an airplane with two sets of wings, one above the other, of a type built and flown mainly in the early part of the 20th century

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